I never knew this, but Frigidaire use universal brush motors for their pump drive. Does this apply to all Frigidaire dishwashers or just some of them? Do 2016 models also use this type of motor?
Starting at 5:17
Starting at 5:17
Frigidaire DW motors
- Thread starter Chetlaham
- Start date
vacerator
Well-known member
re; chopper blade,
Most machines don't even have one anymore because of the noise they made in pump outs.
That Frgidaire looks simple, but also cheaply designed. At least it was able to be fixed.
Most machines don't even have one anymore because of the noise they made in pump outs.
That Frgidaire looks simple, but also cheaply designed. At least it was able to be fixed.
Quality
I guess if one had to choose between GE and Frigidaire it would be GE?
I guess if one had to choose between GE and Frigidaire it would be GE?
chopper blades
How many chopper blades do the frigidaires have? What are they made of?
How many chopper blades do the frigidaires have? What are they made of?
vacerator
Well-known member
Jerome,
it has one, as the photo of the stainless steel blade depicts.
Quality and GE? Of course, I paid $800 for my GE profile in 2011.
It has the Prihana TR blade. I barely hear it. In fact, my machine runs at about 50 db. I added a little insulation in the toe kick because I glued cabinet finish wood to it so it wouldn't rattle at all.
it has one, as the photo of the stainless steel blade depicts.
Quality and GE? Of course, I paid $800 for my GE profile in 2011.
It has the Prihana TR blade. I barely hear it. In fact, my machine runs at about 50 db. I added a little insulation in the toe kick because I glued cabinet finish wood to it so it wouldn't rattle at all.
Does it really matter?
In either case, I'd bet the motors are made in China so as to keep the price down so the cheap ass consumer can get it at Lowes or someplace for the "best possible price", along with 90 days same as cash. Et cetera.
In either case, I'd bet the motors are made in China so as to keep the price down so the cheap ass consumer can get it at Lowes or someplace for the "best possible price", along with 90 days same as cash. Et cetera.
cfz2882
Well-known member
Vietnam
on a damaged 2011 GE dishwasher I stripped,the main motor was made in Vietnam
the drain motor was made in china.
on a damaged 2011 GE dishwasher I stripped,the main motor was made in Vietnam
the drain motor was made in china.quality matters
I like my dishwashers to have quality chopper blades in them. My whirlpool point voyager has 2 stainless steel blades in the food grinder so tough food particles get pulverized. It does matter. I am about quality, not quantity.
I like my dishwashers to have quality chopper blades in them. My whirlpool point voyager has 2 stainless steel blades in the food grinder so tough food particles get pulverized. It does matter. I am about quality, not quantity.
Induction motors are significantly better then brush motors. Yes a very poor induction motor might fail before a good brush motor, but in my experience GE has some of the best motors for any modern dishwasher. The redesigned motors from 2000 are still chugging along. Comparing a brush motor to a GE quiet power motor is imo a no brainier.
If Frigidaire is still using brush motor on their DW I do not think that looks good in terms of reliability.
If Frigidaire is still using brush motor on their DW I do not think that looks good in terms of reliability.
Well you'll be crying in your Cheerios to hear that GE and Elux now source their little brush motors from Johnson Elrctric. A Chinese firm with an English name.
They're AC fed, but have a built in AC/DC converter and permanent magnets.
All make the same distinctive brush 'whine'.
Though they seem pretty powerful thus far.
They're AC fed, but have a built in AC/DC converter and permanent magnets.
All make the same distinctive brush 'whine'.
Though they seem pretty powerful thus far.
vacerator
Well-known member
True Chetaham;
A motor is as good as its bearings, rare earth induction magnets, or armature windings and carbon brushes.
On a copper wound motor, all it takes is one broken spot to cause failure.
A motor is as good as its bearings, rare earth induction magnets, or armature windings and carbon brushes.
On a copper wound motor, all it takes is one broken spot to cause failure.
GE motors
Wait, I thought they were still induction on the low end GEs?
Wait, I thought they were still induction on the low end GEs?
GE's induction motors
Chet, you're 100% correct.
The very low end standard tub GE machines still use the now "old" (aprox. 1/8hp) induction "quiet" motor.
I believe they're now made in China and Vietnam.
Sadly....they used to be made in the USA and Germany back in the 'good old days.'
They're still a great motor though. Probably my favorite.
Chet, you're 100% correct.
The very low end standard tub GE machines still use the now "old" (aprox. 1/8hp) induction "quiet" motor.
I believe they're now made in China and Vietnam.
Sadly....they used to be made in the USA and Germany back in the 'good old days.'
They're still a great motor though. Probably my favorite.
Ok, few, thats a relief. I dont think Id live through a BOL GE dishwasher with a vacuum cleaner motor lol. And that whine noise would also ruin any quiet the motor might have.
I dont think Id live through a BOL GE dishwasher with a vacuum cleaner motor lol. And that whine noise would also ruin any quiet the motor might have.Rectified DC perm magnet motors are used in all kinds of machines these days----From --dishwashers-disposers,power tools,sewing machines,electric lawnmowers,the list goes on!!!Neodonyium magnets have improved these motors-making them more powerful in less space.The perm magnet is the feild-or stator-the armature or rotor is fed power with brushes as on a universal motor.Now "digital" SR motors are replacing perm mag ones in some applications.The SR motors are more expensive-they require a circuit board with the digital electronics to run the SR motor.
vacerator
Well-known member
Correct Rex,
SR motors need a microprocessor to control the sine waves.
SR motors need a microprocessor to control the sine waves.
frigidaire dishwasher pumps
What types of wash pumps do the frigidaires use from the BOL to the TOL models?
What types of wash pumps do the frigidaires use from the BOL to the TOL models?
vacerator
Well-known member
motors,
I do not know about Frigidaire, since I know of so many problems with them.
I'd never buy one.
Throw good money after bad, or do it right the first time.
As my dad used to say, buy a good machine, take care of it, and it takes care of you. Whirlpool, Kitchen Aid, Kenmore by Whirlpool, GE.
Unless you can afford a high end Asko, Miele or Bosch.
I do not know about Frigidaire, since I know of so many problems with them.
I'd never buy one.
Throw good money after bad, or do it right the first time.
As my dad used to say, buy a good machine, take care of it, and it takes care of you. Whirlpool, Kitchen Aid, Kenmore by Whirlpool, GE.
Unless you can afford a high end Asko, Miele or Bosch.
Actually SR motors DO NOT use sine waves-they use a square wave pulse to the stator windings.The SR motor rotor is a cogged laminated iron-no windings of any sort.The square wave pulses magentize the rotor "cogs" on opposite sides of the rotor.As the sequence continues-the motor rotor rotates.And these motors can work like on a wide range of square wave pulse frequencies-then a wide speed range.The width of the wave can determine the torque of the motor.The concept of these was derived a century ago-but took modern tech to make the motor work.The board converts the sine or even DC input power to variable frequency and width square waves to work the motor.If you tried to run the SR motor on sine wave power-it would probably burn up.Cordless Dyson vacuums use these motors-their boards run from the DC power of the vacuums batteries.For AC powered appliances the incoming AC is rectified and converted to the pulses to run the motor.Thermomix blenders are an example of AC powered SR motor.New Rainbow E2 vacuum cleaners use SR motors.Also the motor has "position indicator" windings to feedback to the board so the square wave pulses can be fired in proper sequence.
vacerator
Well-known member
Rex,
thanks for the tutoring. I did not know that.
I am only familiar with the C-sine type of DC motor in miniature.
A few of my Marklin ho scale locomotives have them.
They run so smooth at low speed.
As they were very costly to make, commencing with the recession, they changed the design to a compact can style, and at first there were some problems with pcb board compatability. This explains it maybe.
Note that the Marklin ho is a three rail 16 volt A/C system, so even their armature and commutator older motors were rectification equipped since the early 90's for digital operation.
Now they even have RFID recognition chips. As soon as a loco is placed on the rails, the control unit screen or your computer screen shows which one it is.
There are two rail DC systems also for 12 volt 2 rail DC.
thanks for the tutoring. I did not know that.
I am only familiar with the C-sine type of DC motor in miniature.
A few of my Marklin ho scale locomotives have them.
They run so smooth at low speed.
As they were very costly to make, commencing with the recession, they changed the design to a compact can style, and at first there were some problems with pcb board compatability. This explains it maybe.
Note that the Marklin ho is a three rail 16 volt A/C system, so even their armature and commutator older motors were rectification equipped since the early 90's for digital operation.
Now they even have RFID recognition chips. As soon as a loco is placed on the rails, the control unit screen or your computer screen shows which one it is.
There are two rail DC systems also for 12 volt 2 rail DC.
frigidaire pumps
I noticed that the BOL model frigidaires have a single speed pump while the TOL models have a variable speed pump. Why is that?
I noticed that the BOL model frigidaires have a single speed pump while the TOL models have a variable speed pump. Why is that?
vacerator
Well-known member
Frigidaire is
under the upcharge of Electrolux. Entry level professional line, Electrolux, and Icon.
under the upcharge of Electrolux. Entry level professional line, Electrolux, and Icon.
Bosch
Question... Are Bosch dishwasher motors related to GE's BOL motors? The stator and back molding holding the bearings looks exactly like GE's, just made of plastic. See 4:50:
Question... Are Bosch dishwasher motors related to GE's BOL motors? The stator and back molding holding the bearings looks exactly like GE's, just made of plastic. See 4:50:
Better one
4:52:
4:52:
Oh, to add
It looks like you guys are right. I found this thread with a new GE dishwasher (congrats btw ) and the motor looks identical to Frigidaire's.
http://www.automaticwasher.org/cgi-bin/TD/TD-VIEWTHREAD.cgi?49214
It looks like you guys are right. I found this thread with a new GE dishwasher (congrats btw
) and the motor looks identical to Frigidaire's. http://www.automaticwasher.org/cgi-bin/TD/TD-VIEWTHREAD.cgi?49214
panthera
Well-known member
I always learn so much from these discussions
Especially about the changing motors which power so many of our vintage appliances.
This is a big part of what makes this site so fun.
Especially about the changing motors which power so many of our vintage appliances.
This is a big part of what makes this site so fun.
Knowledge
This place is bar none. Really eye opening.
As for variable speed pumps... one theory I have might be low water ususage. Some ultra high end machines from the past would actually cycle the motor every couple of seconds. The sump would fill, the motor would rev up sending water to the arms and then it would coast down for water to re-enter the sump. When it did it would rev back up again. If the motor rain continuously 2/3 of the time it would be pulling in air.
Frigidaire, at least their low end models over come this by using a diverter so only one wash arm can run at a time.
This place is bar none.
Really eye opening. As for variable speed pumps... one theory I have might be low water ususage. Some ultra high end machines from the past would actually cycle the motor every couple of seconds. The sump would fill, the motor would rev up sending water to the arms and then it would coast down for water to re-enter the sump. When it did it would rev back up again. If the motor rain continuously 2/3 of the time it would be pulling in air.
Frigidaire, at least their low end models over come this by using a diverter so only one wash arm can run at a time.
frigidaire pump rpm
So, I guess the pump on the Frigidaire fbd2400kw spins at about 3600 rpm's if I'm not mistaken. Please correct me. I also heard, however, that they spin at either 3100 or 3200 rpm's. Please correct me.
So, I guess the pump on the Frigidaire fbd2400kw spins at about 3600 rpm's if I'm not mistaken. Please correct me. I also heard, however, that they spin at either 3100 or 3200 rpm's. Please correct me.
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